I'm waiting for the second day for my flight from Frankfurt. I had three cancelations and I'm still on the waitlist.
Today I approached two people in the airport with a question "Can I take from my luggage my phone charger and a toothbrush? "
I got two answers:
Yes, go to lost and found.
Yes, but your bag is somewhere in the airport, if you do this it will cancel your flight.
Which is the correct one?
You need to check with the airline at their customer service desk. All airlines have slightly different policies but typically they return checked luggage, if you are delayed by 24 hours or more. They may already have brought out and then it would sit on the carousel or at the baggage office of the airline.
When you checked your luggage you got a baggage tag that's typically taped to your boarding pass or ticket. You need to talk to someone that can scan this tag. Through the tag, they can determine exactly where your bags are. I'd start with the customer service desk of the airline.
Talk to your airline's customer service desk but...
Most modern phones charge with a standard USB lead and many hotels and cafes (and even trains and buses!) have USB sockets these days. There's sure to be an electronics shop at the airport where you can buy a lead and, if necessary, an adaptor from the local mains wall sockets to USB. As I recall, Frankfurt has a huge shopping centre even before security.
Likewise, airports almost always have pharmacies where you can buy a toothbrush and toothpaste. OK, you already own those things but it's hardly a big deal wot have two tubes of toothpaste on the go at once, and your toothbrush will need replacing in a few months anyway. So you're just buying replacements early. Admittedly, you're paying inflated airport prices but that turns "a few" Euro into "several" Euro at most.
I always put things like phone chargers in my carry-on. You might want to do the same with toiletries but I prefer to put them in checked luggage to avoid the faff at security.
